| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency of work for installing a filling layer in a gap between an outer peripheral surface of a protrusion of roadbed concrete and an inner peripheral surface of a recess in a track slab, when constructing a slab-type track.SOLUTION: Core bodies 46, 48 are sewn on a bag body 42 of a sealed structure and made of non-woven cloth, so that the bag body 42 stands in a self-supported manner while maintaining a sewn form, the bag body being sewn to form a sealed chamber 41 of almost a same shape as a spatial form of a gap 15, and having a filling port 45 for a filler material formed to communicate with the sealed chamber 41. The core body 48 is installed in an X-form along surfaces 42E, 42F of the bag body 42, opposite an outer peripheral surface of a protrusion 13 or an inner peripheral surface of a recess 11.SELECTED DRAWING: Figure 2 |
